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介绍维纳数字滤波技术的基本原理，并以一种轿厢速度反馈闭环控制的ＶＶＶＦ液压电梯为实例，针对轿厢速度反馈信号的特点，完成ＦＩＲ维纳数字滤波器的设计、仿真及实验比较。
This paper introduces the basic principle of Wiener digital filter technology, and takes a VVVF hydraulic elevator with closed-loop feedback control of car speed as an example to design, simulate and experiment the FIR Wiener digital filter according to the characteristics of the car speed feedback signal .